请高人帮忙。

建议楼主去“窗内网”上看看，或许能找到相关信息。

1.What will the following code fragment output?
$num = 100;
(boolean) $num;
print $num;//应该输出一个布尔true,但是我测试得到的输出100,用gettype()得到
//的$num的类型是integer,不明原因
2:
What will the following statement output?
print gettype("10");//string,因为10用引号括了

3:
What will be the output from the following code fragment?
$test_val = 10.5466;
settype( $test_val, "integer" );
print $test_val;//10,没有什么好说的



4.Which of the following statements does not contain an expression?
4;//这个,怎么感觉这个像是应试题
gettype(10);
5/12;



5:
Which of the statements in question 4 contains an operator?

//唉,单词都认识,就是不知怎么编译......

6:
What value will the following expression return?
5 < 2 //false
What data type will the returned value be?//boolean


7.Declare a variable with the name “student_ID” and store the value “ABC123 //$student_ID='ABC123';


8.What value will the following expression return?
100 > 2
//true,和6题重复了

OK,交卷,楼主上标准答案吧?








  

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